Actress Barbara Windsor will take to the tannoy at Tube stations on London Poppy Day to raise money for the Royal British Legion. She will ask the public to donate money for a poppy.
Windsor said: "We want this year desperately to get to a million."
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Police are investigating whether a Land Rover Defender found burnt out in West Horsley was involved in Tuesday night's ram raid.
The work, called Gift Horse, replaces the giant blue cockerel that previously sat on the plinth.
50 of the country's worst pollution blackspots are in the capital. Many in places you may visit every day.